Den Hartog has exhibited since 1991 and her work has been included in exhibitions at the Corcoran Gallery, Washington, D.C. in the "Painting Outside Painting: 44th Biennial Exhibition of Contemporary American Painting,” European galleries in the Netherlands, Denmark and the Czech Republic. Her work is in the collection of The Museum of Modern Art.[2] Den Hartog received a Guggenheim Fellowship in the field of Fine Arts in 2012.[3] She received the Pollock-Krasner Foundation Artists Grant, the Art Matters, Inc. Artists Grant, and the City of Los Angeles Individual Artist Fellowship Award.[4] Den Hartog received her BA in Fine Art at Linfeld College and her MFA in sculpture at Claremont Graduate School. She is a professor at Otis College of Art and Design, and the Program Director of Sculpture/New Genres.